Nshimirimana Joachim (wavutse ku ya 13 Mutarama 1973) ni umukinnyi w’ Umurundi wazobereye mu kwiruka ahantu harehare. Yahagarariye u Burundi mu mikino ibiri y'Olempike ( muri 2004 iya Atenayi, na 2008 i Beijing) akaba afite n'ubwenegihugu bw'Ubutaliyani.[1]
Ku myaka 31, Nshimirimana yitabiriye bwa mbere imikino y' Olempike yo mu 2004 yabereye muri Atenayi, aho yarangije ku mwanya wa 32 arangiza marato yose y'abagabo, akoresheje amasaha 2:19:31, ku shuro ya kabiri, Mu mikino y'Olempike yabereye i Beijing, yarangije marato ya bagabo ku mwanya wa 68, akoresheje amasaha 2:29:55.[2]
Mu 2006, Nshimirimana yegukanye igikombe cya mbere cya shampiyona mu kwituka i Ljubljana Marathon, hamwe nigihe cye cyiza cya 2:14:14.